Electric connecter



H. J. C. PEARSON ELECTRIC CONNECTER Nov. 2o, 1 934.

Original Filed July 21, 1932 2 Sheets-Sheet l ///////////////////71 7/ U7 f f/ C, C wmmdwl'llh w uw Www mw EN N NOV. 20, 1934. H J C, PEARSON 1,981,753

ELECTRIC CONNECTER Original Filed July 2l, 1932 2 Sheets-Sheet 2 Patented Nov. 20, 1934 i UNITED sTATEs PATENT OFFICE 1.381.153f l 'morale oonnsc'raa mmm J. c. man, stima, c. Application July 21, im, serai No. 623,862 nenne ummm 21, 19s.. 1 calm.. (ci. 1ra-zes) The invention relates to electric connecters and has as an object the provision 'of means to conneet separate conductors electrically to the respective conduction elements ot a concentric cable.

It is a further object of the invention to provide a connecter for connecting separate conductors to the successive layers of a cable, wherein the conducting elements" are arranged in layers about a central conductor, having means to clamp the expanded ends o! the separate concentric conducting layers of the cable to metallic sleeves, which sleeves are provided with means for connection thereto of the separate conductors.

Further objects of the invention will appear from the following description when read in connection with the accompanying drawings showing illustrative embodiments of the invention and Y wherein: f

Fig. 1 is a longitudinal central section;

Fig. 2 is a transverse section on line 2-2 of Fig. 1;V

Fig. 3 is an end view seen from the left of Fig. 1 with the cable omitted;

Fig. 4 is a central longitudinal section of a con necting sleeve;

Fig. 5 is an end view of the connecter without the casing, seen from the right in Fig. 1,;

Fig. 6 is a central longitudinal section oi' a modiiied form, and

Fig. 7 is a section on line 7-7 of Fig.

As shown in Fig. 1 the cable to which the con- -necter is to be applied comprises a central conductor 10 and concentric layers ot conducting materialll and 12'. The said ,layers may be in the forni of metallic tubes or as shown may be made up of a plurality of, wires forming anannular or tubular laver of the cable.

As shown in Figs. l to 5 inclusive the conductor comprisesj an insulating body 13 having a central passage 14 to receive the conductor 10 which may pass therethrough and to Ywhich a separate conductor may be soldered.

Toconnect the layer 11 of the cable with a separate conductor 15 there is shown a metallic sleeve 16 having screwthreaded engagement 17 with a second sleeve 18, which second sleeve is *received upon the insulating body 13 and abuts a shoulder 19 thereon. A block 20 is shown as provided with a socket 21 for reception of the conductor 15, which block is shown as secured to the sleeve v18 by means of a screw 22. '.lhe end of the body 13 is shown as tapered and the expanded end of the concentric conductor 11 is clamped between the said tapered;A end of the insulating body and the interior of the sleeve 16 by virtue of the screw threads 17.

A second hollow insulating body 23 is shown engaged over the sleeve 16, which body. is also provided with a conical or tapered end 24 and 59 the insulating body 23 receives thereover a mietallic sleeve 25 which abuts the body 23 at a shoulder 26. The metallic sleeve 25 is shown as provided with a block 27 having a socket'28 for the t reception of `the separate conductor 29. Sie 05 block 2?(,is shown as secured to the sleeve 25 by means 'or a screw 30.

To clamp the expanded end-of the layer 12 of the cable against the insulating body, 23 there is shown'avmetallic sleeve 31 having interiorly 70 screwthreaded engagement at 32 with the sleeve 25, by virtue of which screwthreaded engagement the sleeve 31 may be crawn tightly into clamping engagement with the expanded end of layer 12. The sleeve 31 shown inl detail in Fig. 75 4 has a screwthreaded tapered end portion 33 which end portion is slitted as s hown at 34, which slitted portion may be clamped upon the exterior of the cable by means of a complementary threaded solid ring- 35.

To cover the connecter there is shown a cylindrical casing 36 having an end opening at 37 for reception of the cable and a closure at 38 formed with openings 39, 40 and 40 for passage of the central conductor 10 of the cable and 85 for the separate conductors 15 and 29. The closure 38 is shown as screwed` into the interior ot the opening end of the casing 36.

In application of the connecter, the casing 36 is iirst slipped onto the cable, and then the sleeves 9o 35 and 31 are slipped over the end of the cable from which the insulation and conductors are cut back progressively, until the shoulder of 31 meets the uncut outer braid, as shown in Fig. 1. Then the sleeve 35 is screwed onto 31 over the` 95 'split ends, by means of screwthreads 33, compressing these to clamp onto the outer braid and securely anchoringthis unit of the connecter to the cable.

Sleeve 25, carrying a wedge shaped insulating 100. sleeve 23 and a conducting ring 16, is then slipped over the cable and sleeve 25 is screwed onto 31 by means of screwthreads 32, forcing/,the sleeve 23 into the layer of insulation beneath the outer layer of conductorsl 12 and forcing these con- 105` a t -ductors out against the shoulder of sleeve 31,

making electrical connection from 12 to 31v and 25.v At the same time the insulating sleevey 23 is forced between conductors 11 and 12, preventing any accidental contact.

Sleeve 18, carrying a wedge shaped inner insulating sleeve 13 is next slipped over the cable and sleeve 18 is screwed into 16 by means of the screwthreads 17, forcing the wedge shaped insu- The middle conductor 10, is extended through the hole 40 in sleeve 38 to afford connection to the inner conductor 10.

` thereto.

Conductors 15 and 29 are soldered into lugs 20 and 27 and passed through holes 39 and 40 in 38. Sleeve 36 is 'now brought in position over the connecter and screwed onto 38, completing the assembly.

In the form of the invention in Figs. 6 and 7 there is shown a central conductor 10 and the concentric layers 11 and 12. In this-form of. the invention a insulating tube 39 covers thecentral conductor 10 and receives upon its exterior a metallic sleeve 40" having a connecter screw 4l for attachment of a separate conductor The expanded end of the layer 1l is clamped against the sleeve 40 by means of screws 41 taking into an insulating body 42. The expanded end of vthe layer 12 is in turn clamped between the insulating body 42 and a metallic sleeve 43 provided with a connecter screw 44 for attachment of a second separate conductor, screws 45 being provided for clamping the sleeve 43'against the end of the conductor 12.

A casing 46 is shown and a closure member 47 which may be provided with openings not shown for the passage of the separate conductors 15 and 29.

The assembly of the structure of Figs. 6 and 7 will be obvious.

Minor changesv may be made in the physical 'embodiments of the invention within the scope of the appended claims without departing from the spirit of the invention.

I claim:

1. A connecter for concentric electric cables comprising, in combination: a plurality of sleeves having successively larger interior diameters to receive successively increased portions of the cable; alternate sleeves of electrical conducting material with a sleeve of insulating material therebetween; screw means to clamp the expanded ends of concentric layers of conductors between said insulating and conducting sleeves; and means to connect separate conductors to said conducting sleeves.

2. A connecter for concentric electric cables comprising, in combination: a plurality of sleeves having successively larger interior diameters to receive successively increased portions of the cable; opposed ends. of said sleeves having complemental frusto conical surfaces to wedge successive layers of conductors therebetween; alternate sleeves of electrical conductive material with a sleeve of insulating material therebetween;

screw means to clamp the expanded ends of concentric layers of conductors between said insulating and conducting sleeves andmeans to connect separate conductors to said conducting sleeves. l

3. A connecter for ,concentric electric cables comprising, in combination: a body of Vinsulation having a central passage to receive the central conductor` of the cable; an .end ofsaid body formed to abut the expanded end of an annular conductor; an annular metallic sleeve to surround the central conductor and its insulation and to abut the said expanded end; screw means to clamp said sleeve against said conductor end; and means to electrically connect a separate conductor to said sleeve.

4. A connecter for concentric electric cables comprising, in combination: a metallic sleeve having a central passage to receive the central conductor of the cable; means to insulate said sleeve from said conductor; screw means to clamp said sleeve against the expanded end of a concentric conductor; a 'second kmetallic sleeve to surround said concentric conductor; insulation means between said sleeves; screw means to clamp a second concentricconductor against said second sleeve; and means to electrically connect separate conductors to said respective metallic sleeves.

5. A connecter for concentric electric cables comprising, in combination: an insulating sleeve having an interior diameter to receive an axial conductor of the cable, and afrusto conical end surface; a metallic sleeve -upon said rst named sleeve adjacent said end surface; a sec,-

ond metallic sleeve having an inner complemental frusto conical surface in an end thereof and having screwthreaded engagement with the first named metallic sleeve whereby to clamp the expanded end of a concentric conductor between said surfaces and means to connect a separate conductor to one of said sleeves.

6. A connecter for concentric electric cables comprising, in combination: an insulating sleeve having a central opening -lto receive an axial receive said concentric conductor and its insulation, an enlarged portion to receive said clamping sleeve and a frusto conical end surface; a metallic sleeve seating on and projecting from said last named frusto conical end in an interiorly screwthreaded portion; a metallic sleeve having peripheral threads to engage said projecting threaded portion, and a frusto conical interior end portion to clamp a second expanded end of -a concentric conductor; said last named sleeve slitted at its remaining end and formed exteriorly with a tapered thread portion and adapted to receive the end of the complete cable; a complemental band to engage said tapered threads to clamp the cable within said slitted sleeve portion and means to connect separate conductors to said i'lrst and third named metallic sleeves. Y

7. A connecter for concentric electric cables comprising, in combination: means having a nect said disc to an end of the cylinder in connecter-enclosing position.

HAROLD J. C. PEARSON. 

